They have to wear a suit and tie practically everyday and are only permitted to use the phone to call their parents, but even then only on Christmas and Mother's Day.
Interaction between sexes is limited, so dating is out and even flirting isn't allowed, but then dating would be hard when spending nearly every minute with one or two other guys.
This is the life 19-year-old Drew Loughran signed up for for the next two years when he decided to complete a mission trip with the Church of Jesus Christ of Latter Day Saints.
Despite the hardships he is in for, the trip isn't about himself, he said.
"I hope I'll change others," he said. "I hope that I can help other people."
The Huntington Beach resident is expected to depart Wednesday for a two-month training session in Provo, Utah, before he leaves in December for about two years in Sofia, Bulgaria.